First of all - these are good pedals. There is nothing different about them vs any other standard SPD based pedal other than the small charging pins located on the inside of the spindle. The power readings are great - no dropping or issues. Paired instantly with my Garmin products. Battery life is crazy - still on my initial charge since purchase including multiple road trips (the vehicle motion sometimes turn the pedals on and ~ 250 miles of riding).
I've been riding with Shimano dual power meters (two bikes) for almost ten years. Never really needed the dual, since my power was essentially the same. It was an expensive choice that didn't add much, if any, value. Third bike was a SRAM spider power meter mount, it was great, but I think the cost was around $400. This is just as good, but not nearly as much money. As long as it holds up, it will be the best value power meter I've purchased in ten years. 4 stars only because I've only had it two months.
Bikesdirect was fast and easy to use. Pedals were on the bike, setup, and calibrated ready to ride within 20 minutes. Data seems perfectly accurate. My outdoor testing is within 2-3W of my bests on the indoor trainer across multiple efforts from 2-12 minutes, and heart rate tracks perfectly with my indoor data and power numbers. No issues with sounds as I saw in other reviews. I charged them fully before installing them the first time and they are still holding medium battery after roughly 40hrs of riding time. I would definitely buy these and use bikesdirect again in the future.
I bought these pedals to get power number while I ride my gravel bike. I have Shimano SPD cleats and these work just fine with them. So far I've ridden my gravel bike with these pedals a total of 6 rides in 1. 5months. Three of those rides were on gravel and the other three were just riding around town. These pedals connected very quickly to my Garmin 1030 and they stay connected - no drops or connection issues so far after stopping and starting mid-ride. I'm not a huge fan of the app but luckily you only need to use that during initial setup and whenever you want to update firmware which I do not plan to do more than once every quarter. I haven't had to charge them yet after 8-9 hours of riding on them. I wouldn't def recommend these to folks who don't have the budget to purchase the dual sides pedals.
